Gas burner



Dec. 15, 1931.

F. A, GERclcH ET AL GAS BURNER Filed July 26. 1927 Fig.

IN VEN TOR. E fl, GERc/CH mvv' BY MM. BERRY Mg A TTORNEYS.

Patented Dec. 15, 1931` i UNITED STATES FREDERICK A. GERGICH, 07F OAKLAND; vAND WALTER M. BERRY, OF LOS ANGELES,

CALIFORNIA, ASSIGNORS TO HAM'MER-B A CORPORATION OF CALIFORNIA Ges BURNER Application filed July 2e,

The invention relates to a gas burner particularly designed for use in a solid-fuel firebox of a stove.

An object of the invention is to provide a burner of the class described disposable outside a wall of a fire-box and provided with a minimum number of jet projections for extension through the wall whereby the combined area of the projection receiving openings through the wall will be a minimum..v

Another object of the invention is to provide a burner of the class described having, the jet openings thereof s0 arranged as to insure an immediate ignition at all the jets when the gas at one jet is lit.

A further obj ect of the invention is to pro-V vide in a burner of the class described means insuring an even distribution of fuel to all the jets.

The invention possessesother objects and features of advantage, some of which, with the foregoing, will be set forth in the follow* ing description of the preferred formlof the Y n invention which is illustrated in the drawings accompanying and forming part of the speellication. It is to be understood, however, that I variations'in the showing made by the said drawings and description may be adopted A within the scopeof the invention as set forth in the claims.

Referring to said drawings, i Figure 1 is a fragmentaryA sectional view taken through the upper portion of a fire-- box and the burner of our invention.

Figure 2 is a fragmentary plan view taken on the line 2-2 in Figure 1.k

Figure 3 is a perspective view of the burner of our invention.

As herewith particularly shown, the burner 5 of our invention is operatively associated with a solid-fuel firebox 6 having side walls 7 and Sand an overlying cooking top 9. The cooking top overlies both the ire-boxand a top-gasburner chamber 11, it being noted that the wall 8 is common to the fire-box 6 through openings 13 provided in the wall 8.

i927. serial No. 208,4,91

As here shown, the cooking top above the iirebox is provided with an opening'liin which a griddle plate16 or the like is ar-A ranged to be disposed.

have heretofore been lformed with a plurality of relatively close and equally spaced nozzles, thereby requiring a large number of openings in the J1vall through which the nozzles toa cooking temperature, a relatively long flame jet is required, and hence the number of jet openings cannot be excessive, it being notedthat decreasing the size of such open` ings, while` it will increase '4 the burner dis-` charge pressure, will actually decrease the amount of heat generated at each et without appreciably increasing the distance 'of-pro# jection of the iame jet. In accordance with our invention, however, the foregoingdifculties lare overcome by ,grouping the jet openings at different nozzles and so directing the jets that a simultaneous burning of the Agas Vfrom'tlie different jets is insured. Ac-

cordingly, and as here shown, each nozzle 12 is provided with a pair of jet openings 17,

such openings being directed slightly up;

wardly and angularly opposite from the axes vof .the nozzleswhereby the flame jets projected therefrom will strike the plate 16 centrally and will at the same time substantially, intersect each other. In this manner, the lighting of the gas at one jet will insure a 'lighting of the gas at all the other jetsgsince a substantially continuous path of fuel is provided for the fire. And, furthermore, the jets are few enoughto insure a major com-f busticn Aat the plate 16 in the form of a spread flamepwhereby the plate will befuniformly and eiicientlyheated. The angularspread provided Vfor the jets of each nozzle, it will It willY now be noted that burners of the class described, where mounted as shown,

PATENT OFFICE ,j

COMPANY, OF' OAKLAND, CALIFORNIA,

Since the burner now j be noted, also insures a complete combustion of gas along the full length of the jets.

referably, the nozzle end faces 18 prodisposed in a substantially horizontal plane and formed integral with said burner.

In testimony whereof, we have hereunto vidiiig the et openings 17 are perpendicular set our hands at Oakland, California, and lo theaxes of such openings whereby drilling Los Angeles, California, respectively.

of the openings is facilitated and a burner of minimum weight is provided. As here shown, the two faces 18 and an imperforate FREDERICK A. GERCICH. VALTER M. BERRY.

face 19 together define a nozzle end of the form of a triangular pyramid.

The burner body, it will now be noted, is provided with a longitudinal passage 21 and connected branch passages 22 in the nozzles 12. The inlet end 23 of the burner is angularly related to the nozzle carrying portion of the burner whereby the gas mixer 24 at the extremity thereof may be disposed outwardly of the plane of the wall 8 when the burner is operatively disposed thereagainst. Owing to the length of the passage 21 and the fact that the gas is supplied thereto at an end, it has been found that the nozzles closest to the mixer tend to receive too little gas owing to acertain suction effect produced by the gas passing them as it moves toward the other jets. The effect is overcome some- `what by reason of the provision of the nozzle passages 22 which extend transversely from the passage 21 foi-'supplying the pair of jet openin at the nozzle ends. To still further insure an even distribution of gas from the passage 21, a baffle 25 is provided in the passage ahead of and adjacent the first nozzle, such baffle extending into the passage from the nozzle side thereof whereby a direct sweep of gas across the mouth of the first nozzle passage 22 is positively prevented, and vis minimized somewhat at least the second nozzle passage 22. In this manner it has beenfound that the gas pressure at the different jetv openings is the same, so that a uniform distribution of the fuel is effected along the length of the fire-box and an even heating `of the plate 16 is effected.

Te claim: Y

1. In combination with a re-box having a cooking plate thereover, a burner operatively disposed outside of said fire-box and provided with a plurality of parallelly aligned integral jet nozzles extending into said fire-box in a common horizontal plane, each of said nozzles being provided with a plurality of jet openings, the various jet openings being in coplanar relation and inclined upward towards said plate, the axes of the vburner arranged to discharge intersecting jets of fiame obliquely upwardly against said plate in coplanar relation with each other, said jets of fiame being discharged from substantially spaced apart parallel jet nozzles 

